Abstract: A connection structure includes a first apparatus and a second apparatus. The first apparatus includes a first contact portion and a surrounding wall surface. The second apparatus includes a second contact portion and a hollow projection. The first apparatus and the second apparatus are connected as being rotatable relatively to each other around a magnetic force direction and attachable to and detachable from each other, as a result of attraction by magnetic force. The projection is located with a clearance being interposed between the wall surface and the first contact portion, where the projection can be tilted in accordance with pulling including a direction component perpendicular to the magnetic force direction. In the first apparatus, a clearance between a top portion and the projection in a first direction is larger than a clearance between the top portion and the projection in a second direction different from the first direction.

Abstract: An information processing apparatus includes a history obtaining unit configured to obtain at least one of movement history information indicating a movement history of each of one or more movable objects and use history information indicating a use history of each of one or more parts installed in any of the one or more movable objects, and a degradation estimation unit configured to estimate a degradation degree of each of the one or more parts based on at least one of the movement history indicated by the movement history information obtained by the history obtaining unit and the use history indicated by the use history information obtained by the history obtaining unit.

Abstract: The self-propelled toy includes a vehicle body, wheels connected to the vehicle body, a battery provided at the vehicle body, a motor using electric power stored in the battery to output drive power for running use, an imaging device connected to the vehicle body so as to capture an image of an area in front of the self-propelled toy, an operating part operated by a user so as to make the imaging device operate, and a charging port supplying electric power from an outside power source to the battery. The operating part is provided at a top part of the vehicle body at one side from a centerline of vehicle width of the self-propelled toy, and the charging port is provided at a side part of the vehicle body at the same side as the operating part from the centerline of vehicle width.

Abstract: The self-propelled toy includes a vehicle body, wheels connected to the vehicle body, a battery provided at the vehicle body, a motor using electric power stored in the battery to output drive power for running use, an imaging device connected to the vehicle body so as to capture an image of an area in front of the self-propelled toy, an operating part operated by a user so as to make the imaging device operate, and a charging port supplying electric power from an outside power source to the battery. The operating part is provided at a top part of the vehicle body at one side from a centerline of vehicle width of the self-propelled toy, and the charging port is provided at a side part of the vehicle body at the same side as the operating part from the centerline of vehicle width.

Abstract: A layered body includes: a polymer film (A), the polymer film (A) including an organic piezoelectric material having a weight average molecular weight of from 50,000 to 1,000,000, having a standardized molecular orientation MORc at a reference thickness of 50 ?m of from 1.0 to 15.0 as measured by a microwave transmission molecular orientation analyzer, having a degree of crystallinity of from 20% to 80% as measured by a DSC method, and having an internal haze of 50% or less with respect to visible light; and a peelable protective film (B) that contacts one main face of the polymer film (A). The maximum indentation depth h max on a face of the protective film (B) that contacts the polymer film (A) is from 53 nm to 100 nm as measured by a nanoindentation method.

Abstract: A layered body includes: a polymer film (A), the polymer film (A) including an organic piezoelectric material having a weight average molecular weight of from 50,000 to 1,000,000, having a standardized molecular orientation MORc at a reference thickness of 50 ?m of from 1.0 to 15.0 as measured by a microwave transmission molecular orientation analyzer, having a degree of crystallinity of from 20% to 80% as measured by a DSC method, and having an internal haze of 50% or less with respect to visible light; and a peelable protective film (B) that contacts one main face of the polymer film (A). The maximum indentation depth hmax on a face of the protective film (B) that contacts the polymer film (A) is from 53 nm to 100 nm as measured by a nanoindentation method.

Abstract: Provided is an injection molded body of a polypropylene resin composition, which has excellent fluidity and burr prevention performance. The polypropylene resin composition contains a conjugated diene-modified polypropylene resin (A) that has a melt flow rate of 1-150 g/10 min as measured at 230° C. under a load of 2.16 kg and a polypropylene resin (B) that has a melt flow rate of 7-100 g/10 min as measured at 230° C. under a load of 2.16 kg. Relative to 100 parts by weight of the total of the components (A) and (B), the content of the component (A) is 0.1-50 parts by weight and the content of the component (B) is 99.9-50 parts by weight. The polypropylene resin composition has a melt flow rate of 10-80 g/10 min as measured under the above-described conditions, while having a melt tension of 0.7-30 gf as measured at 200° C. at 10 m/min.

Abstract: A polypropylene resin sheet which shows sufficiently reduced drawdown with excellent melt elongation and further has good heat resistance and good appearance. The polypropylene resin sheet may be formed from a polypropylene resin composition, the polypropylene resin composition containing: 60% to 97% by weight of a first polypropylene resin having a melt flow rate range of 0.1 to 10 g/10 min, and 3% to 40% by weight of a modified polypropylene resin having a elongational viscosity ratio to the first polypropylene resin of at least 1.5, at a strain of 3, obtained by melt kneading a second polypropylene resin, a conjugated diene compound, and a radical polymerization initiator.

Abstract: Provided is a polymeric piezoelectric film including a helical chiral polymer having a weight average molecular weight of from 50,000 to 1,000,000 and having optical activity, in which a crystallinity of the film measured by a DSC method is from 20% to 80%, a product of a standardized molecular orientation MORc measured by a microwave transmission-type molecular orientation meter based on a reference thickness of 50 ?m and the crystallinity is from 40 to 700, and, when a refractive index in a slow axis direction in the film surface is nx, a refractive index in a fast axis direction in the film surface is ny, a refractive index in a thickness direction of the film is nz, and an Nz coefficient=(nx?nz)/(nx?ny), the Nz coefficient is from 1.108 to 1.140.

Abstract: A polypropylene resin sheet which shows sufficiently reduced drawdown with excellent melt elongation and further has good heat resistance and good appearance. The polypropylene resin sheet may be formed from a polypropylene resin composition, the polypropylene resin composition containing: 60% to 97% by weight of a first polypropylene resin having a melt flow rate range of 0.1 to 10 g/10 min, and 3% to 40% by weight of a modified polypropylene resin having a elongational viscosity ratio to the first polypropylene resin of at least 1.5, at a strain of 3, obtained by melt kneading a second polypropylene resin, a conjugated diene compound, and a radical polymerization initiator.

Abstract: An upper cover attaching concavity and a lower cover attaching concavity are respectively formed on rear surfaces of an upper housing and a lower housing of a non-limiting example portable game apparatus, and hook recesses each having a portion existing beneath an area are formed on a flat surface of the upper cover attaching concavity and fitting recesses are formed on side surfaces. Hook recesses each having a portion existing beneath an area are formed on a flat surface of the lower cover attaching concavity and fitting recesses are formed on side surfaces. Hooks are inserted into the hook recesses and fitting projections fit into the fitting recesses, whereby an upper cover is attached to the upper cover attaching concavity. Hooks are inserted into the hook recesses and fitting projections fit into the fitting recesses, whereby a lower cover is attached to the lower cover attaching concavity.

Abstract: An upper cover attaching concavity and a lower cover attaching concavity are respectively formed on rear surfaces of an upper housing and a lower housing of a non-limiting example portable game apparatus, and hook recesses each having a portion existing beneath an area are formed on a flat surface of the upper cover attaching concavity and fitting recesses are formed on side surfaces. Hook recesses each having a portion existing beneath an area are formed on a flat surface of the lower cover attaching concavity and fitting recesses are formed on side surfaces. Hooks are inserted into the hook recesses and fitting projections fit into the fitting recesses, whereby an upper cover is attached to the upper cover attaching concavity. Hooks are inserted into the hook recesses and fitting projections fit into the fitting recesses, whereby a lower cover is attached to the lower cover attaching concavity.

Abstract: A cartridge, which is an attachment device, is mountable into an insertion slot in a game apparatus. At a side surface inside the insertion slot, a slide member is movable from a near side to a far side. The attachment device includes a housing and a hook. When the attachment device is inserted into the insertion slot, a predetermined portion of the housing abuts against the slide member, and the slide member is caused to move toward the far side of the insertion slot when the predetermined portion is inserted further inside while abutting against the slide member. The hook is inserted into a recessed portion generated at the side surface inside the insertion slot when the slide member moves toward the far side of the insertion slot, and then latches onto the inside wall.

Abstract: A method for producing a carbonitrided member comprising the steps of carburizing a steel part having a composition of, by mass percent, C: 0.10 to 0.35%, Si: 0.15 to 1.0%, Mn: 0.30 to 1.0%, Cr: 0.40 to 2.0%, S: 0.05% or less with the balance being Fe and impurities in a carburizing atmosphere of 900 to 950° C. The carburized steel part is carbonitrided in a carbonitriding atmosphere with the temperature of 800 to 900° C. and the nitrogen potential of 0.2 to 0.6%. The carbonitrided steel part is qhenched and then shot peened. The shot peening treatment may be further performed while heating to a temperature not higher than 350° C. or immediately after heating to a temperature not higher than 350° C. After quenching, the shot peening treatment may be further performed after tempering in the temperature range exceeding 250° C. and not higher than 350° C.

Abstract: Disclosed is a water absorbent material and an interconnected cell porous body which can be optimally used as a flower arranging pedestal and a plant culture medium. The interconnected cell porous body is formed from a resin composition with a polylactic acid-based resin as the main component. The pore walls, formed by joining together the crushed powder fragments formed by crushing the foam of the aforementioned resin composition, form the interconnected cell structure of the aforementioned porous body. The apparent density greater of the interconnected cell porous body is than or equal to 0.01 g/cm3 and a less than or equal to 0.2 g/cm3; the 10% compression stress is greater than or equal to 0.02 MPa and less than or equal to 0.3 MPa; and the compression recovery rate is less than or equal to 95%. The water absorbent material comprises the interconnected cell porous body.

Abstract: A process for producing a carbonitrided part comprising the steps of preparing a base steel part, having a composition comprising, in mass percent, C: 0.10 to 0.24%, Si: 0.15 to 1.0%, Mn: 0.30 to 1.0%, Cr: 0.40 to 2.0%, S: 0.05% or less, with the balance being Fe and impurities and performing the following steps 1-4 in sequence. Step 1 is carburizing the base steel part under a carburizing atmosphere at a temperature of 900 to 950° C. Step 2 is carbonitriding the base steel part carburized according to step 1 under a carbonitriding atmosphere at a temperature of 800 to 900° C. with a nitrogen potential of 0.2 to 0.6%. Step 3 is quenching the base steel part carbonitrided according to step 2. Step 4 is tempering the base steel part quenched according to step 3 at a temperature of more than 250° C. to not more than 350° C.

Abstract: A hook 14 causes an attachment device (cartridge), which is mounted into an insertion slot arranged in an electronic apparatus such as a game apparatus, to be engaged with the insertion slot. The hook includes an arm 22, a ring portion 21 and a latch portion 23. The ring portion 21 is connected to one end of the arm 22. The latch portion 23 is connected to the other end of the arm 22, and is latchable onto a predetermined portion of the insertion slot. Further, the ring portion 21 is pivoted by a spindle 31 of the attachment device, and is shaped so as to be deformable when a force from the arm 22 is applied thereto, the force being caused by the attachment device moving so as to be ejected from the insertion slot.

Abstract: Disclosed is a water absorbent material and an interconnected cell porous body which can be optimally used as a flower arranging pedestal and a plant culture medium. The interconnected cell porous body is formed from a resin composition with a polylactic acid-based resin as the main component. The pore walls, formed by joining together the crushed powder fragments formed by crushing the foam of the aforementioned resin composition, form the interconnected cell structure of the aforementioned porous body. The apparent density greater of the interconnected cell porous body is than or equal to 0.01 g/cm3 and a less than or equal to 0.2 g/cm3; the 10% compression stress is greater than or equal to 0.02 MPa and less than or equal to 0.3 MPa; and the compression recovery rate is less than or equal to 95%. The water absorbent material comprises the interconnected cell porous body.